JP2023107235A - vehicle seat - Google Patents

Abstract

To restrict a position of an air-permeable bag in a vehicle seat.SOLUTION: A vehicle seat 1 has: a frame 8; a pad 10 supported by the frame; a surface cover material 12 attached to the pad; and first blower modules 40 provided at the pad. The pad is formed with first insertion holes 22 which penetrate from a front surface to a rear surface of the pad. Each first blower module has: a first blower 41 disposed at the rear surface side of the pad; an air passage member 42 extending from the first blower, passing through the first insertion hole, and extending to the front surface side of the pad; and an air-permeable bag 44 connected to the air passage member and formed with multiple discharge ports 43 for discharging air. A width W2 of the air-permeable bag is larger than a width W1 of the first insertion hole, and a width W2 of the air passage member is smaller than a width of the first insertion hole.SELECTED DRAWING: Figure 6

Description

The present invention relates to a vehicle seat equipped with an air conditioner.

2. Description of the Related Art A vehicle-mounted seat having an air passage for blowing air from the surface of the seat is known (for example, Patent Document 1). The seat described in Patent Document 1 has a seat cushion pad that constitutes a seat cushion that serves as a seating portion.

The seat cushion pad has an air passage formed inside and a plurality of air outlets formed on the upper surface of the seat cushion pad. The air passage is connected to the blower. The air sent from the blower is blown from below toward the occupant by passing through the blower port.

JP 2019-181245 A

The air passage described in Patent Literature 1 is provided at a portion where the occupant's buttocks and thighs abut when the occupant is seated. If the air blown by the blower is warm air or cold air, the buttocks and thighs of the occupant located near the air outlet are excessively warmed or cooled. This may make the passenger feel uncomfortable.

Therefore, the inventors of the present application focused on the left and right portions of the seat cushion pad, which are less likely to come into contact with the buttocks and thighs of the occupant. The left and right side portions of the seat cushion pad have slanted surfaces that bulge upward and slope downward from the upper ends thereof toward the left and right inwards.

In addition, the inventor accommodated a ventilation bag connected to the blower in the ventilation path in order to prevent the ventilation path from being blocked due to deformation of the seat cushion pad when the occupant is seated.

However, since the seat cushion sinks when the user sits on the seat, the ventilation bag also moves in the sinking direction, so the position to arrange the ventilation bag is not determined.

Therefore, in view of the above background, it is an object of the present invention to regulate the position of a ventilation bag in a vehicle seat.

In order to solve the above problems, the present invention provides a vehicle seat (1) comprising a frame (8), a pad (10) supported by the frame, and a skin material (12) covering the pad. ) and a first air blower (40) provided in the pad, and the pad is formed with a first insertion hole (22) penetrating from the front surface to the back surface of the pad. The device includes a first blower (41) arranged on the rear surface side of the pad, and an air passage member (42) extending from the first blower to the front surface side of the pad through the first insertion hole. and a ventilation bag (44) connected to the air passage member and having a plurality of discharge ports (43) for discharging air, wherein the width (W2) of the ventilation bag is equal to the width of the first insertion hole. (W1) and the width (W3) of the air passage member is smaller than the width of the first insertion hole.

According to this aspect, the ventilation bag cannot pass through the first insertion hole from the surface side of the pad to the back surface side. Further, the air passage member is received in the first through hole and is restrained from moving by the portion of the pad that defines the first through hole. Therefore, the position of the ventilation bag is regulated.

In the above aspect, the ventilation bag and the air passage member may have a structure in which the outer contours of two sheets of sheet material (49) of the same shape that are overlapped are joined together.

According to this aspect, the ventilation bag and the air passage member become compact.

In the above aspect, a breathable fiber mat material (50) may be arranged between the two sheet materials.

According to this aspect, since the thickness is ensured between the sheet materials, air passages are ensured.

The air passage member has an air passage member lower portion (42A) connected to the first blower and an upper air passage member (42B) coupled to the air passage member lower portion. The upper air passage member may be arranged on the rear surface side of the pad, pass through the first insertion hole, and the width (W4) of the lower portion of the air passage member may be larger than the width of the first insertion hole. .

According to this aspect, the lower portion of the air passage member cannot pass through the first insertion hole from the rear surface side to the front surface side of the pad. Therefore, the position of the ventilation bag is more restricted.

In the above aspect, the vehicle seat has a seat cushion (4) that supports the buttocks and thighs of the occupant, and a seat back (5) that supports the back of the occupant, and the pad includes: A seat cushion pad (14) forming the seat cushion and a seat back pad (15) forming the seat back, wherein the seat cushion pad includes a base portion (16) forming a center portion in the left-right direction and a seat back pad (15) forming the seat back. , and left and right protuberances (17) that protrude upward from the left and right ends of the base, and the first insertion hole is provided between at least one of the left and right protuberances and the base, The ventilation bag may be arranged on the upper surface of the raised portion.

According to this aspect, air can be sent out from the side of the seated person.

In the above aspect, a pair of left and right first hanging grooves (20) that engage with the skin material and extend forward and backward are provided between the left and right raised portions and the base portion, and the first insertion hole may be arranged on the left and right outside of the first hanging groove.

According to this aspect, the ventilation bag is arranged without interfering with the engagement between the first hanging groove and the covering material.

In the above aspect, the left and right protuberances are provided at the left and right outer ends, and have outer end surfaces (17A) facing left and right outward, and inclined surfaces (17B) extending downward from the upper ends of the respective outer end surfaces toward the left and right inward. ), and the ventilation bag may be arranged on the inclined surface.

According to this aspect, since the ventilation bag is arranged so as to avoid the outer end surface of the raised portion forming the back side of the seat cushion pad, it is possible to more effectively send out air from the side of the seated person.

In the above-described aspect, the inclined surface is formed with a downward recessed accommodation recess (24), and the air passage member and the ventilation bag that have passed through the first insertion hole are accommodated in the accommodation recess. may be

According to this aspect, the surface of the ventilation bag, more specifically, the surface having the discharge port, is arranged on the same plane as the inclined surface of the protuberance, so that the aesthetic appearance is maintained when the protuberance is covered with the skin material. drip.

In the above aspect, the ventilation bag has an inner edge portion (56) extending in the front-rear direction, and the air passage member has a front edge portion (57) adjacent to the inner edge portion and extending in a direction orthogonal to the front-rear direction. and a portion of the pad may be positioned at a corner (58) formed between the inner edge and the leading edge.

According to this aspect, the downward and forward movement of the ventilation bag is suppressed. Therefore, the position of the ventilation bag is more restricted.

In the above aspect, the accommodation recess may have an edge (85) that abuts the corner.

According to this aspect, the downward and forward movement of the ventilation bag is suppressed. Therefore, the position of the ventilation bag is more restricted.

In the above aspect, the base has a plurality of second hanging grooves (21) that engage with the skin material, extend to the left and right, and are connected to the left and right first hanging grooves, and the ventilation The bag may be arranged at a position not overlapping the imaginary line (21A) extending from each of the plurality of second hanging grooves.

According to this aspect, the ventilation bag is arranged in the portion where the bending of the base is smaller when the seated person is seated.

Said aspect WHEREIN: A said 1st penetration hole may be arrange|positioned in the position which does not overlap with the said virtual line which each extended said several 2nd hanging groove|channel.

According to this aspect, the ventilation bag is arranged in the portion where the bending of the base is smaller when the seated person is seated.

In the above aspect, the frame has a seat cushion frame (25) forming the seat cushion and a seat back frame (26) forming the seat back, and the seat cushion frame extends in the front-rear direction. A pair of left and right side members (27), a front member (28) extending in the left and right direction and coupled to the front ends of the left and right side members, and a rear member (28) extending in the left and right direction and coupled to the rear ends of the left and right side members. (29), the front member may be formed of a plate-shaped member having a width in the front-rear direction, and the ventilation bag may extend forward beyond the rear end of the front member.

According to this aspect, since the length of the ventilation bag in the front-rear direction is ensured, air can be sent out from the side of the seated person over a wider range.

In the above aspect, each of the left and right ends of the front member may extend forward of the corresponding front end of the side member, and the ventilation bag and the front member may overlap when viewed from above.

According to this aspect, since the length of the ventilation bag in the front-rear direction is ensured, air can be sent out from the side of the seated person over a wider range.

In the above aspect, the seat cushion frame has an intermediate member (30) disposed between the front member and the rear member, extending in the left-right direction, and coupled to the left and right side members, the air passage A member may extend vertically behind said intermediate member.

According to this aspect, the air passage member is arranged without interfering with the intermediate member. Therefore, it is easy to attach the air passage member.

In the above aspect, the seat cushion has a pressure-receiving member disposed between the intermediate member and the rear member, and the pressure-receiving member (32) is formed of a plate-like member having a surface facing up and down. , the pressure-receiving member is formed of a plate-shaped member having a width in the front-rear direction, the pressure-receiving member is formed with a first opening (39) penetrating vertically, and the first blower has the first opening (39) as viewed from above. It may be arranged in a position aligned with one opening.

According to this aspect, the rigidity of the pressure receiving member is ensured.

In the above aspect, the vehicle seat further comprises a second blower (70), the second blower comprising a second blower (71) and a duct ( 72), the pressure-receiving member is formed with a second opening (73) penetrating vertically, and the base portion is provided with a second opening (73) penetrating from the back surface side to the front surface side of the base portion, and in addition to the duct. A second insertion hole (74) for receiving an end is provided at a position aligned with the second opening when viewed from above, the first insertion hole is defined in a rectangular shape when viewed from above, and the second insertion hole (74) The hole may be defined in a rectangular shape when viewed from above, the longitudinal direction of the first insertion hole may correspond to the front-rear direction, and the longitudinal direction of the second insertion hole may correspond to the left-right direction.

According to this aspect, the air passage member and the duct are arranged so as not to interfere with each other. Therefore, it is easy to attach the first blower and the second blower.

In order to solve the above problems, the present invention provides a vehicle seat (1) comprising a frame (8), a pad (10) supported by the frame, and a skin material (12) covering the pad. ) and a first air blower (40) provided in the pad, and the pad is formed with a first insertion hole (22) penetrating from the front surface to the back surface of the pad. The device includes a first blower (41) arranged on the rear surface side of the pad, and an air passage member (42) extending from the first blower to the front surface side of the pad through the first insertion hole. and a ventilation bag (44) connected to the air passage member and having a plurality of discharge ports (43) for discharging air, wherein the width (W2) of the ventilation bag is equal to the width of the first insertion hole. (W1) and the width (W3) of the air passage member is smaller than the width of the first insertion hole.

According to this aspect, the ventilation bag cannot pass through the first insertion hole from the surface side of the pad to the back surface side. Further, the air passage member is received in the first through hole and is restrained from moving by the portion of the pad that defines the first through hole. Therefore, the position of the ventilation bag is regulated.

In the above aspect, the ventilation bag and the air passage member may have a structure in which the outer contours of two sheets of sheet material (49) of the same shape that are overlapped are joined together.

According to this aspect, the ventilation bag and the air passage member become compact.

In the above aspect, a breathable fiber mat material (50) may be arranged between the two sheet materials.

According to this aspect, since the thickness is ensured between the sheet materials, air passages are ensured.

The air passage member has an air passage member lower portion (42A) connected to the first blower and an upper air passage member (42B) coupled to the air passage member lower portion. The upper air passage member may be arranged on the rear surface side of the pad, pass through the first insertion hole, and the width (W4) of the lower portion of the air passage member may be larger than the width of the first insertion hole. .

According to this aspect, the lower portion of the air passage member cannot pass through the first insertion hole from the rear surface side to the front surface side of the pad. Therefore, the position of the ventilation bag is more restricted.

In the above aspect, the vehicle seat has a seat cushion (4) that supports the buttocks and thighs of the occupant, and a seat back (5) that supports the back of the occupant, and the pad includes: A seat cushion pad (14) forming the seat cushion and a seat back pad (15) forming the seat back, wherein the seat cushion pad includes a base portion (16) forming a center portion in the left-right direction and a seat back pad (15) forming the seat back. , and left and right protuberances (17) that protrude upward from the left and right ends of the base, and the first insertion hole is provided between at least one of the left and right protuberances and the base, The ventilation bag may be arranged on the upper surface of the raised portion.

According to this aspect, air can be sent out from the side of the seated person.

In the above aspect, a pair of left and right first hanging grooves (20) that engage with the skin material and extend forward and backward are provided between the left and right raised portions and the base portion, and the first insertion hole may be arranged on the left and right outside of the first hanging groove.

According to this aspect, the ventilation bag is arranged without interfering with the engagement between the first hanging groove and the covering material.

In the above aspect, the left and right protuberances are provided at the left and right outer ends, and have outer end surfaces (17A) facing left and right outward, and inclined surfaces (17B) extending downward from the upper ends of the respective outer end surfaces toward the left and right inward. ), and the ventilation bag may be arranged on the inclined surface.

According to this aspect, since the ventilation bag is arranged so as to avoid the outer end surface of the raised portion forming the back side of the seat cushion pad, it is possible to more effectively send out air from the side of the seated person.

In the above-described aspect, the inclined surface is formed with a downward recessed accommodation recess (24), and the air passage member and the ventilation bag that have passed through the first insertion hole are accommodated in the accommodation recess. may be

According to this aspect, the surface of the ventilation bag, more specifically, the surface having the discharge port, is arranged on the same plane as the inclined surface of the protuberance, so that the aesthetic appearance is maintained when the protuberance is covered with the skin material. drip.

In the above aspect, the ventilation bag has an inner edge portion (56) extending in the front-rear direction, and the air passage member has a front edge portion (57) adjacent to the inner edge portion and extending in a direction orthogonal to the front-rear direction. and a portion of the pad may be positioned at a corner (58) formed between the inner edge and the leading edge.

According to this aspect, the downward and forward movement of the ventilation bag is suppressed. Therefore, the position of the ventilation bag is more restricted.

In the above aspect, the accommodation recess may have an edge (85) that abuts the corner.

According to this aspect, the downward and forward movement of the ventilation bag is suppressed. Therefore, the position of the ventilation bag is more restricted.

In the above aspect, the base has a plurality of second hanging grooves (21) that engage with the skin material, extend to the left and right, and are connected to the left and right first hanging grooves, and the ventilation The bag may be arranged at a position not overlapping the imaginary line (21A) extending from each of the plurality of second hanging grooves.

According to this aspect, the ventilation bag is arranged in the portion where the bending of the base is smaller when the seated person is seated.

Said aspect WHEREIN: A said 1st penetration hole may be arrange|positioned in the position which does not overlap with the said virtual line which each extended said several 2nd hanging groove|channel.

According to this aspect, the ventilation bag is arranged in the portion where the bending of the base is smaller when the seated person is seated.

In the above aspect, the frame has a seat cushion frame (25) forming the seat cushion and a seat back frame (26) forming the seat back, and the seat cushion frame extends in the front-rear direction. A pair of left and right side members (27), a front member (28) extending in the left and right direction and coupled to the front ends of the left and right side members, and a rear member (28) extending in the left and right direction and coupled to the rear ends of the left and right side members. (29), the front member may be formed of a plate-shaped member having a width in the front-rear direction, and the ventilation bag may extend forward beyond the rear end of the front member.

According to this aspect, since the length of the ventilation bag in the front-rear direction is ensured, air can be sent out from the side of the seated person over a wider range.

In the above aspect, each of the left and right ends of the front member may extend forward of the corresponding front end of the side member, and the ventilation bag and the front member may overlap when viewed from above.

According to this aspect, since the length of the ventilation bag in the front-rear direction is ensured, air can be sent out from the side of the seated person over a wider range.

In the above aspect, the seat cushion frame has an intermediate member (30) disposed between the front member and the rear member, extending in the left-right direction, and coupled to the left and right side members, the air passage A member may extend vertically behind said intermediate member.

According to this aspect, the air passage member is arranged without interfering with the intermediate member. Therefore, it is easy to attach the air passage member.

In the above aspect, the seat cushion has a pressure-receiving member disposed between the intermediate member and the rear member, and the pressure-receiving member (32) is formed of a plate-like member having a surface facing up and down. , the pressure-receiving member is formed of a plate-shaped member having a width in the front-rear direction, the pressure-receiving member is formed with a first opening (39) penetrating vertically, and the first blower has the first opening (39) as viewed from above. It may be arranged in a position aligned with one opening.

According to this aspect, the rigidity of the pressure receiving member is ensured.

In the above aspect, the vehicle seat further comprises a second blower (70), the second blower comprising a second blower (71) and a duct ( 72), the pressure-receiving member is formed with a second opening (73) penetrating vertically, and the base portion is provided with a second opening (73) penetrating from the back surface side to the front surface side of the base portion, and in addition to the duct. A second insertion hole (74) for receiving an end is provided at a position aligned with the second opening when viewed from above, the first insertion hole is defined in a rectangular shape when viewed from above, and the second insertion hole (74) The hole may be defined in a rectangular shape when viewed from above, the longitudinal direction of the first insertion hole may correspond to the front-rear direction, and the longitudinal direction of the second insertion hole may correspond to the left-right direction.

According to this aspect, the air passage member and the duct are arranged so as not to interfere with each other. Therefore, it is easy to attach the first blower and the second blower.

1 is a perspective view of a vehicle seat according to a first embodiment; FIG. Top view of the seat cushion viewed from above Sectional view of seat cushion (III-III sectional view in FIG. 2) Perspective view of seat cushion frame Plan view of the seat cushion frame viewed from above The perspective view of the 1st air blower which concerns on 1st Embodiment. A plan view of the seat cushion frame viewed from below Perspective view showing seat cushion mounting structure A plan view of the seat cushion according to the second embodiment viewed from above. A plan view of the seat cushion according to the third embodiment as seen from below. A plan view of the seat cushion according to the third embodiment viewed from above. A plan view of the seat cushion according to the fourth embodiment viewed from above. A perspective view of a seatback frame according to a fifth embodiment. A perspective view of a seat back pad according to a fifth embodiment. The perspective view of the 1st air blower which concerns on 5th Embodiment. Sectional drawing which shows the attachment structure of the 1st air blower which concerns on 5th Embodiment

Hereinafter, an example in which the vehicle seat of the present invention is applied to a vehicle seat 1 mounted in a vehicle such as an automobile will be described with reference to the drawings.

(First embodiment)
As shown in FIG. 1, a vehicle seat 1 is placed on a floor 3 that defines the bottom of a compartment of a vehicle so as to face the front of the vehicle. In this embodiment, the vehicle seat 1 constitutes a front row seat. Hereinafter, description will be given by defining each direction of front and rear, left and right, and up and down with reference to the vehicle.

A vehicle seat 1 has a seat cushion 4 coupled to a floor 3 , a seat back 5 coupled to the rear portion of the seat cushion 4 , and a headrest 6 provided above the seat back 5 . The seat cushion 4 supports the buttocks and thighs of the seated person. The seat back 5 supports the waist and back of the seated person. The vehicle seat 1 has a frame 8 forming these frameworks, a pad 10 supported by the frame 8 , and a skin material 12 covering the pad 10 .

The upholstery material 12 is made of stretchable fabric or the like, and forms a design surface of the vehicle seat 1 by covering the frame 8 and the pad 10 .

The pad 10 is made of foamed resin such as urethane foam. The pad 10 has a seat cushion pad 14 forming the seat cushion 4 and a seat back pad 15 forming the seat back 5 .

The seat cushion pad 14 has a base portion 16 forming a central portion in the left-right direction. The base 16 has a plate-like shape and has a surface facing the up-down direction. An upper surface 16A of the base portion 16 forms a seating surface for a seated person, is recessed downward at the center in the left-right direction, and is inclined downward toward the rear. When the occupant is seated, the occupant's buttocks are positioned behind the upper surface 16A of the base 16 and the occupant's thighs are positioned in front of the upper surface 16A of the base 16 .

The seat cushion pad 14 further has left and right protrusions 17 that protrude upward from the left and right ends of the base 16 . The left and right protuberances 17 are provided at the left and right outer ends and have outer end surfaces 17A facing left and right outward, and inclined surfaces 17B descending left and right inward from the respective upper ends of the outer end surfaces 17A. The upper ends of the left and right outer end surfaces 17A are located above the upper surface 16A of the base portion 16 respectively. Each of the left and right inclined surfaces 17B is inclined downward from the upper end of the corresponding outer end surface 17A toward the upper surface 16A of the base portion 16 . As a result, the left and right inclined surfaces 17B are arranged so as to face the sides of the buttocks and thighs of the seated person, more specifically, the left and right inwards and upwards. The upper surface 16A of the base portion 16 and the inclined surface 17B of the raised portion 17 form the surface of the seat cushion pad 14 facing the seated person, and the lower surface of the base portion 16 and the outer end surface 17A of the raised portion 17 form the back surface of the seat cushion pad 14. .

As shown in FIGS. 2 and 3, a pair of left and right first hanging grooves 20 are provided between the inclined surfaces 17B of the left and right raised portions 17 and the upper surface 16A of the base portion 16 to extend in the front-rear direction. Each of the left and right first hanging grooves 20 is formed so as to be recessed below the upper surface 16A of the base portion 16 . The base portion 16 is also provided with two second hanging grooves 21 extending left and right and connected to the left and right first hanging grooves 20 . The two second hanging grooves 21 are spaced apart from each other in the front-rear direction. The second hanging groove 21 on the front side is arranged in the central portion of the base portion 16 in the front-rear direction. The second hanging groove 21 on the rear side is arranged at the center in the front-rear direction of the base portion 16 behind the second hanging groove 21 on the front side. A portion of the base portion 16 in front of the second hanging groove 21 on the front side is recessed downward.

Clips (not shown) are provided on the bottom of the first hanging groove 20 and the bottom of the second hanging groove 21 to extend along the extending direction of each hanging groove. The skin material 12 has an engaging portion (not shown) that engages with the clip. The upholstery material 12 is hung in the first hanging groove 20 and the second hanging groove 21 by engaging the engaging portion with the clip. Thereby, the upholstery material 12 is fixed to the seat cushion pad 14 .

Seat cushion side first insertion holes 22 are formed between the left and right raised portions 17 and the base portion 16 so as to extend in the vertical direction and pass through the surface of the seat cushion pad 14 and the back surface of the seat cushion pad 14 . Each of the left and right seat cushion-side first insertion holes 22 is defined in a rectangular shape when viewed from above. The longitudinal direction of each of the left and right seat cushion side first insertion holes 22 corresponds to the front-rear direction. The left and right seat cushion side first insertion holes 22 are arranged on the left and right outside of the first hanging groove 20 . Also, the seat cushion side first insertion hole 22 is arranged at a position that does not overlap the imaginary line 21A extending from each of the two second hanging grooves 21 . That is, the seat-cushion-side first insertion hole 22 is located forward of the front-side second hanging groove 21 and near the center of the base portion 16 in the front-rear direction. Note that, in another embodiment, the seat cushion side first insertion hole 22 may overlap the imaginary line 21A extending from each of the two second hanging grooves 21 .

The inclined surface 17B of the protuberance 17 is formed with a seat cushion side housing recess 24 recessed downward. The seat cushion side housing recess 24 communicates with the seat cushion side first insertion hole 22 . That is, the seat-cushion-side housing recess 24 extends upward from the seat-cushion-side first insertion hole 22 with a front-rear width equal to the front-rear width W1 of the seat-cushion-side first insertion hole 22, and then extends forward. there is The lateral width of the seat cushion side housing recess 24 extending forward is larger than the front and rear width W1 of the seat cushion side first insertion hole 22 .

As shown in FIGS. 4 and 5, the frame 8 has a seat cushion frame 25 that forms the seat cushion 4 and a seat back frame 26 that forms the seat back 5 (see FIG. 13). The seat cushion frame 25 is arranged on the back side of the seat cushion 4, that is, below the seat cushion 4, and supports the seat cushion 4 from below.

The seat cushion frame 25 has a pair of left and right seat cushion side members 27 extending in the front-rear direction. The left and right seat cushion side members 27 are made of metal plate members. The left and right seat cushion side members 27 are spaced apart from each other so that their main surfaces face each other.

The seat cushion frame 25 extends in the left-right direction and has a front member 28 coupled to the front ends of the left and right seat cushion-side side members 27 , and a rear member 28 extending in the left-right direction and coupled to the rear ends of the left and right seat cushion-side side members 27 . and a member 29 . The front member 28 is formed of a plate-like member having width in the front-rear direction. The front member 28 may be formed of a plate-like member made of metal. Each of the left and right ends of the front member 28 extends forward of the front end of the corresponding seat cushion-side side member 27 . The rear member 29 is formed of a metallic tubular member.

The seat cushion frame 25 is arranged between the front member 28 and the rear member 29, extends in the left-right direction, and has an intermediate member 30 coupled to the left and right side members. The intermediate member 30 is formed by a metallic tubular member.

The seat cushion 4 has a seat cushion side pressure receiving member 32 arranged between the intermediate member 30 and the rear member 29 . The seat cushion side pressure receiving member 32 has a seat cushion side pressure receiving member main body 33 formed of a plate-like member, and a surrounding frame 34 formed of a tubular member coupled around the seat cushion side pressure receiving member main body 33. The seat cushion side pressure receiving member body 33 and the surrounding frame 34 may be made of hard resin. The seat cushion side pressure receiving member main body 33 is provided so that its front and rear center portions are aligned with the front and rear center portions of the left and right seat cushion side side members 27 , respectively. The lateral width of the front portion of the seat cushion side pressure receiving member main body 33 is narrower than the lateral width of the rear portion of the seat cushion side pressure receiving member main body 33 .

The left and right surrounding frames 34 extend forward and backward along both left and right edges of the seat cushion side pressure receiving member main body 33 . The front end of the peripheral frame 34 extends forward from the front end of the seat cushion side pressure receiving member main body 33 and has a first concave portion 35 recessed upward. The rear end of the peripheral frame 34 extends rearward from the rear end of the seat cushion side pressure receiving member main body 33 and has a second concave portion 36 recessed upward.

The seat cushion side pressure receiving member 32 is fixed to the seat cushion frame 25 by receiving the intermediate member 30 in the first recess 35 and receiving the rear member 29 in the second recess 36 . A gap 38 is formed between the left and right edges of the front portion of the seat cushion side pressure receiving member 32 and the corresponding seat cushion side side member 27 . As will be described later, the gap 38 is aligned with the seat cushion side first insertion hole 22 formed in the seat cushion pad 14 when viewed from above.

Two first openings 39 are formed in the central rear part of the seat cushion side pressure receiving member main body 33 so as to penetrate vertically and arranged in parallel in the left and right direction. Due to the left and right first openings 39 , the portion near the periphery of the seat cushion side pressure receiving member main body 33 defining the first openings 39 bends more easily than the other portions of the seat cushion side pressure receiving member main body 33 . When the seated person sits down, the central portion of the seat cushion side pressure receiving member main body 33 is recessed downward due to the bending of the portion near the periphery defining the first opening 39 . As a result, the area of the upper surface 16A of the base 16 that contacts the buttocks or thighs of the seated person through the skin material 12 can be increased, and the seated person can be comfortably seated.

As shown in FIGS. 1 and 6, the vehicle seat 1 has two first air blowers 40 for blowing air to the seated person. By sending air to the seated person, dampness that occurs when the person is seated is suppressed. Each of the two first blowers 40 includes a first blower 41 arranged on the back side of the seat cushion pad 14, an air passage member 42 connected to the first blower 41, and an air passage member 42, and a ventilation bag 44 formed with a plurality of discharge ports 43 for discharging air.

The first blower 41 may be a sirocco fan, and has an impeller (not shown), a motor that rotates the impeller, and a rectangular parallelepiped casing 45 that houses the impeller and the motor. The casing 45 is provided with an intake port (not shown) for sucking air and an air supply port for sending out air. The first blower 41 has two projecting pieces 46 formed in a plate-like shape having surfaces facing in the vertical direction and projecting left and right outward from the casing 45 , and a vertical direction It also has a mating hole 48 extending through it.

The air passage member 42 and the ventilation bag 44 are formed from the same integrally formed member. Specifically, the air passage member 42 and the ventilation bag 44 have a structure in which the outer contours of two sheet materials 49 of the same shape that are superimposed are joined together. The two sheet materials 49 may be made of synthetic resin and have no air permeability. A plate-like fiber mat member 50 is arranged between the two sheet members 49 . The fiber mat material 50 is a structure in which natural fibers or synthetic fibers are three-dimensionally knitted and has spaces 52 between meshes of fibers 51, and has air permeability and elasticity. The fiber mat material 50 is adhered to the two sheet materials 49 .

The air passage member 42 is coupled to the air passage member lower portion 42A connected to the first blower 41 and the air passage member lower portion 42A and passes through the seat cushion side first insertion hole 22 provided in the seat cushion pad 14. and an air passage member upper portion 42B. Each of the left and right air passage member lower portions 42A has a surface facing up and down, extends left and right outward from the corresponding left and right first blowers 41, and then extends forward. Each of the left and right air passage member upper portions 42B has a surface facing left and right, and extends upward from the corresponding end portion of the left and right air passage member lower portions 42A. The ventilation bag 44 has a surface facing upward and extends forward from the ends of the left and right air passage member upper portions 42B so as to be orthogonal to the air passage member upper portions 42B. The ventilation bag 44 thereby has an inner edge 56 extending in the front-rear direction. Further, the air passage member upper portion 42B has a front edge portion 57 adjacent to and perpendicular to the inner edge portion 56 and extending in the vertical direction. A corner 58 is formed between the front edge 57 and the inner edge 56 .

The lateral width W2 of the left and right ventilation bags 44 is greater than the longitudinal width W1 of the seat cushion side first insertion hole 22, and the longitudinal width W3 of the air passage member upper portion 42B is greater than the longitudinal width W3 of the seat cushion side first insertion hole 22. It is smaller than the front-to-rear width W1. Further, the left and right width W4 of the forwardly extending portion of the left and right air passage member lower portions 42A is larger than the front-to-rear width W1 of the seat cushion side first insertion hole 22 .

Three discharge ports 43 for discharging air are formed in each of the left and right ventilation bags 44 . Each of the three discharge ports 43 is formed in one of the two sheet materials 49, the sheet material 49 forming a surface facing upward.

As shown in FIGS. 1 and 7, the vehicle seat 1 further includes a second air blower 70 that blows air to the seated occupant. The second blower 70 has a second blower 71 arranged on the back side of the seat cushion pad 14 and a duct 72 having one end connected to the second blower 71 . The second blower 71 may be a sirocco fan, and has an impeller (not shown) and a motor for rotating the impeller. The duct 72 has a rectangular shape in cross section.

As shown in FIGS. 4 and 5, the front portion of the seat cushion side pressure receiving member main body 33 is formed with two second openings 73 penetrating vertically and defined in a rectangular shape when viewed from above. The longitudinal direction of each of the two second openings 73 corresponds to the horizontal direction. The length of the second opening 73 in the front-back direction is set larger than the length of the duct 72 in the width direction. The length of the second opening 73 in the left-right direction is set larger than the length of the duct 72 in the longitudinal direction.

As shown in FIGS. 2 and 3, the base portion 16 of the seat cushion pad 14 is formed with a second insertion hole 74 penetrating vertically. The second insertion hole 74 is defined in a rectangular shape when viewed from above, and is provided smaller than the outer dimension of the duct 72 . The longitudinal direction of the second insertion hole 74 viewed from above corresponds to the left-right direction. The second insertion hole 74 is provided in a portion forward of the front second hanging groove 21 provided in the seat cushion pad 14 .

A lower cover 75 and a ventilation cover 81 covering the lower cover 75 are fitted in the recessed portion of the base portion 16, that is, the portion forward of the second hanging groove 21 on the front side. By fitting the lower cover 75 and the ventilation cover 81, the upper surface of the ventilation cover 81 is arranged on the same plane as the upper surface 16A of the base 16 behind the second hanging groove 21 on the front side.

The lower cover 75 may be the same member as the seat cushion pad 14 and has a plate shape. The lower cover 75 is provided with an air passage forming groove 76 extending along the surface of the lower cover 75 . The air passage forming groove 76 vertically penetrates the lower cover 75 .

As shown in FIG. 3, the air passage forming groove 76 includes a first air passage forming groove 77 extending forward and leftward from a position aligned with the second insertion hole 74, and a first air passage forming groove 77 curved forward from the first air passage forming groove 77. and a second air passage-forming groove 78 formed to. The air passage forming groove 76 is formed by a third air passage forming groove 79 extending forward and rightward from the central portion of the first air passage forming groove 77 and curved forward from the third air passage forming groove 79 . and a fourth air passage forming groove 80 .

The ventilation cover 81 may be the same member as the seat cushion pad 14 and has a plate shape. As shown in FIGS. 1 and 3 , the ventilation cover 81 is formed with a plurality of ventilation holes 82 penetrating vertically and communicating with the ventilation path forming groove 76 .

As shown in FIG. 8 , each of the first blowers 41 of the two first air blowers 40 is arranged on the back side of the seat cushion pad 14 , more specifically, below the seat cushion side pressure receiving member 32 . Each of the first blowers 41 of the two first blowers 40 is aligned with the corresponding first opening 39 provided in the seat cushion side pressure receiving member main body 33 when viewed from above. Each first opening 39 is aligned between two second hanging grooves 21 provided in the seat cushion pad 14 .

Each of the left and right first air blowers 40 is arranged with the intake port facing downward and the air supply port facing left and right outward. For example, the seat cushion side pressure receiving member main body 33 has through holes (not shown) formed outside the left and right first openings 39 . The left and right first air blowers 40 arrange the fitting hole 48 coaxially with the through hole from below the through hole of the seat cushion side pressure receiving member main body 33, and then separate the fitting hole 48 and the through hole. It may be attached by screwing with a bolt (not shown) that penetrates and a nut.

The air passage member lower portions 42A of the corresponding air passage members 42 connected to the left and right first blowers 41 are arranged on the rear surface side of the seat cushion pad 14, more specifically, below the seat cushion side pressure receiving member 32. As shown in FIG. The front end of the air passage member lower portion 42</b>A of the air passage member 42 is aligned with the rear of the intermediate member 30 and the front end of the seat cushion side pressure receiving member main body 33 . The left and right outer edges of the front ends of the air passage member lower portions 42A of the left and right air passage members 42 are in corresponding gaps 38 provided between the front portion of the seat cushion side pressure receiving member 32 and the left and right seat cushion side members 27. be consistent.

In another embodiment, the front end of the air passage member lower portion 42A may be arranged in alignment with the front of the intermediate member 30 . The intermediate member 30 may have a structure in which its central portion is bent backward. The front ends of the left and right air passage member lower portions 42A are preferably aligned with the corresponding bent portions.

Each of the left and right gaps 38 is aligned with the corresponding seat cushion side first insertion hole 22 . The air passage member upper portions 42B of the left and right air passage members 42 pass through the gap 38 and the seat cushion side first insertion hole 22 .

When attaching the left and right ventilation bags 44 and the air passage members 42 to the vehicle seat 1, the worker compresses the air passage member lower portions 42A of the left and right air passage members 42 and presses the corresponding seat cushion side first insertion holes 22. from top to bottom. Next, the operator causes the air passage member lower portions 42A of the left and right air passage members 42 to pass through the corresponding gaps 38 from top to bottom. At this time, the operator may release the compression of the air passage member lower portion 42A. After that, the operator connects the air passage member lower portions 42A of the left and right air passage members 42 to the corresponding air supply ports of the first blower 41 . After that, the operator receives the left and right ventilation bags 44 and the air passage member upper portion 42B of the air passage member 42 above the seat cushion side first insertion hole 22 in the corresponding seat cushion side accommodation recesses 24 .

The left and right ventilation bags 44 and the left and right air passage member upper portions 42B that have passed through the seat cushion side first insertion holes 22 are received in the seat cushion side accommodation recesses 24 provided on the slopes of the corresponding protuberances 17 . At this time, the ejection port 43 is arranged so as to face left and right inward.

The raised portion 17 defines the seat cushion side accommodation recess 24, and the edge forming the portion where the portion in contact with the inner edge portion 56 of the ventilation bag 44 and the portion in contact with the front edge portion 57 of the air passage member upper portion 42B are adjacent to each other. A portion 85 is formed. Edge 85 abuts corner 58 formed by vent bag 44 and air passage member 42 .

The ventilation bag 44 extends forward beyond the rear end of the front member 28 and overlaps the front member 28 when viewed from above. Also, the ventilation bag 44 is arranged at a position that does not overlap the imaginary line 21A extending from each of the two second hanging grooves 21 .

A second blower 71 of the second blower 70 is arranged below the front member 28 . The right second opening 73 provided in the seat cushion side pressure receiving member 32 is aligned with the second insertion hole 74 . In this state, the front-to-rear width of the second insertion hole 74 and the front-to-rear width of the second opening 73 match when viewed from above.

As shown in conjunction with FIGS. 3 and 7 , one end of the duct 72 of the second blower 70 is connected to the second blower 71 . After passing under the intermediate member 30 , the other end of the duct 72 passes through the second opening 73 from the bottom to the top, and then passes through the second insertion hole 74 from the bottom to the top. is located at the top of the Since the second insertion hole 74 is smaller than the dimension of the duct 72 , the biasing force of the base 16 that defines the second insertion hole 74 is applied to the portion of the duct 72 that is disposed in the second insertion hole 74 . works. The duct 72 is thereby attached to the base 16 .

As shown in FIGS. 2 and 6, the left and right width W3 of the ventilation bag 44 for discharging the air sent out from the first air blower 40 is determined by the width of the seat cushion side first insertion hole 22 provided in the seat cushion pad 14. It is larger than the front-rear width W1. The lateral width W4 of the air passage member lower portion 42A of the air passage member 42 connected to the first blower 41 is larger than the longitudinal width W1 of the seat cushion side first insertion hole 22. As shown in FIG. A front-rear width W3 of the air passage member upper portion 42B of the air passage member 42 disposed in the seat cushion-side first insertion hole 22 is smaller than a front-rear width W1 of the seat cushion-side first insertion hole 22 . As a result, the ventilation bag 44 cannot pass through the seat cushion side first insertion hole 22 from top to bottom. Further, the air passage member lower portion 42A cannot pass through the seat cushion side first insertion hole 22 from bottom to top. Further, the air passage member upper portion 42B is received in the seat cushion side first insertion hole 22, and the portion of the seat cushion pad 14 defining the seat cushion side first insertion hole 22 suppresses movement in the longitudinal direction and the lateral direction. be. Therefore, the position of the ventilation bag 44 is regulated.

As shown in FIGS. 1 and 3, the inclined surface 17B of the raised portion 17 is formed with a seat cushion side housing recess 24 recessed downward. An air passage member upper portion 42B of the air passage member 42 that has passed through the ventilation bag 44 and the seat cushion side first insertion hole 22 is received in the seat cushion side accommodating recess 24 . As a result, air can be sent out toward the seated person from the left and right inner sides. In addition, since the ventilation bag 44 is arranged avoiding the outer end surface 17A of the raised portion 17 forming the back surface side of the seat cushion pad 14, air can be more effectively sent out from the left and right inner sides toward the seated person. Furthermore, since the surface of the ventilation bag 44 having the discharge port 43 is arranged on the same plane as the inclined surface 17B of the raised portion 17, the appearance of the raised portion 17 covered with the skin material 12 is maintained. .

As shown in FIGS. 5 and 8, the ventilation bag 44 extends forward beyond the rear end of the front member 28 and overlaps the front member 28 when viewed from above. As a result, the length of the ventilation bag 44 in the front-rear direction is ensured, so that air can be sent out from the sides of the seated person over a wider range.

As shown in FIGS. 2 and 3 , each of the left and right seat-cushion-side first insertion holes 22 is defined in a rectangular shape elongated in the front-rear direction when viewed from above, and extends left and right outside the corresponding first hanging groove 20 . are placed in As a result, the ventilation bag 44 and the air passage member 42 passing through the seat cushion side first insertion hole 22 do not cover the first hanging groove 20, that is, the engagement between the first hanging groove 20 and the upholstery material 12 is prevented. Placed without interference.

The seat-cushion-side first insertion hole 22 is arranged in the vicinity of the center portion of the base portion 16 in the front-rear direction and in front of the front-side second hanging groove 21 . Also, the ventilation bag 44 is arranged at a position that does not overlap the imaginary line 21A extending from each of the two second hanging grooves 21 . Near the base portion 16 where the second hanging groove 21 is formed, the rigidity is weaker than other portions of the base portion 16 where the second hanging groove 21 is not formed. In other words, when the seated person sits down, the vicinity of the base 16 formed with the second hanging grooves 21 is more likely to bend than other portions of the base 16 where the second hanging grooves 21 are not formed. On the other hand, as the base portion 16 is bent, the ventilation bag 44 moves in the bending direction, that is, downward. Therefore, the ventilation bag 44 is arranged in a portion of the base 16 where the deflection is smaller when the seated person is seated.

As shown in FIGS. 2 and 8, the ventilation bag 44 has an inner edge portion 56 extending in the front-rear direction, and the air passage member upper portion 42B has a front edge portion 57 extending in the vertical direction adjacent to and perpendicular to the inner edge portion 56. have. A corner 58 is formed between the front edge 57 and the inner edge 56 . The raised portion 17 is adjacent to a portion that defines the seat cushion side accommodation recess 24 and that contacts the inner edge portion 56 of the ventilation bag 44 and a portion that contacts the front edge portion 57 of the air passage member upper portion 42B. An edge portion 85 is formed to form a portion that overlaps. As a result, downward and forward movement of the ventilation bag 44 is suppressed. Therefore, the position of the ventilation bag 44 is more restricted.

As shown in FIG. 6, the air passage member 42 and the ventilation bag 44 are made of the same integrally formed member, and have a structure in which the outer contours of two overlapping sheet materials 49 of the same shape are joined together. . A plate-shaped fiber mat material 50 is arranged between the two sheet materials 49 . As a result, the air passage member 42 and the ventilation bag 44 are made compact, increasing the freedom of arrangement. In addition, by arranging the fiber mat material 50, a thickness is ensured between the two sheet materials 49, thereby ensuring an air passage.

As shown in FIGS. 5 and 7 , the air passage member upper portions 42B of the left and right air passage members 42 extend vertically behind the intermediate member 30 . As a result, the air passage member upper portions 42B of the left and right air passage members 42 are arranged without interfering with the intermediate member 30 . Therefore, the mounting work of the left and right air passage members 42 is easy.

As shown in FIG. 8, each of the first blowers 41 of the two first blowers 40 is attached to the pressure receiving member in alignment with the corresponding first opening 39 provided in the seat cushion side pressure receiving member main body 33. ing. Thereby, the rigidity of the portion near the circumference defining the first opening 39 is ensured. Therefore, excessive recession of the seat cushion side pressure receiving member 32 is suppressed when the seated person is seated.

In another embodiment, each of the two first blowers 41 may be attached forward of the corresponding first opening 39 provided in the seat cushion side pressure receiving member main body 33 . Thereby, the length of the air passage member 42 can be shortened.

As shown in FIG. 2, each of the left and right seat cushion side first insertion holes 22 that receive the air passage member 42 is defined in a rectangular shape whose longitudinal direction corresponds to the front-rear direction. The second insertion hole 74 for receiving the duct 72 is defined to have a rectangular shape when viewed from above, the longitudinal direction of which corresponds to the left-right direction. Thus, the first blower 40 that blows air from the side of the seated person and the second blower 70 that blows air from below the seated person are arranged. Therefore, it is easy to attach the first blower 40 and the second blower 70 .

Note that the first blower 40 may have a heating source or a cooling source on either the air inlet side or the air inlet side of the first blower 41 . The heating source may be, for example, a heat sink or a PTC heater (Positive Temperature Coefficient heater). The cooling source may be, for example, a Peltier element. Thereby, the 1st air blower 40 sends out warm air or cold air from a seated person's side. By using the first air blower 40 and the second air blower 70 together, it is possible to give a more comfortable seating comfort to the seated person. A plurality of vents 82 fed from the second blower 70 are provided in the base 16 . The base 16 abuts the seated person's buttocks and thighs via the skin material 12 when the seated person is seated. On the other hand, a plurality of discharge ports 43 to which air is sent from the first air blower 40 are provided in the raised portion 17 . When the seated person sits on the raised portion 17, the seated person's buttocks and thighs are less likely to abut. Therefore, hot air or cold air is less likely to hit the seated person directly, so that the seated person can be provided with more comfortable sitting comfort.

(Second embodiment)
The vehicle seat 1 according to the second embodiment differs from the vehicle seat 1 according to the first embodiment only in the arrangement of the seat cushion side first insertion holes 22 . Components similar to those of the vehicle seat 1 according to the first embodiment are denoted by the same reference numerals, and descriptions thereof are omitted.

As shown in FIG. 9 , the seat cushion-side first insertion holes 22 passing through the front surface of the seat cushion pad 14 and the back surface of the seat cushion pad 14 are arranged inside the first hanging groove 20 on the left and right sides. In this case, the air passage member upper portion 42B arranged above the seat cushion side first insertion hole 22 may pass through the upholstery material 12 and be received in the seat cushion side accommodation recess 24 . Specifically, the portion of the upholstery 12 suspended in the first suspension groove 20 has a side facing left and right, and a through hole (not shown) formed in this side and penetrating left and right. The air passage member upper portion 42B is received in the seat cushion side receiving recess 24 by passing through the through hole. As a result, the vertically extending imaginary line of the air passage member upper portion 42B is offset laterally outward from the vertically extending imaginary line of the seat cushion side first insertion hole 22 . Therefore, along with the deflection of the base portion 16, the movement of the air passage member 42 in the direction of deflection, that is, downward movement is suppressed.

(Third embodiment)
The first blower device 40 according to the third embodiment differs from the first blower device 40 according to the first embodiment only in the configurations of the ventilation bag 44 and the air passage member 42 . The same reference numerals are assigned to the same configurations as those of the first blower device 40 according to the first embodiment, and the description thereof is omitted.

As shown in FIGS. 10 and 11 , the first blower device 40 further has a rear air passage member 60 and a rear ventilation bag 62 connected to the rear air passage member 60 . The air blown out from the first blower 41 passes through the air passage member 42 and the rear air passage member 60, respectively, and is discharged from the ventilation bag 44 and the rear ventilation bag 62 toward the seated person.

The rear air passage member 60 may be made of the same material as the air passage member 42 . The rear air passage member 60 includes a rear air passage member lower portion 60A connected to the first blower 41 and a rear air passage member upper portion 60B connected to the rear air passage member lower portion 60A and passing through the seat cushion side first insertion hole 22. and

The front-to-rear width of the air passage member lower portion 42A and the front-to-rear width of the rear air passage member lower portion 60A are half the front-to-rear width of the air supply port of the first blower 41 . The front-rear width W3 of the air passage member upper portion 42B and the front-rear width of the rear air passage member upper portion 60B are half the front-rear width of the seat cushion side first insertion hole 22 .

As shown in FIG. 11, the rear ventilation bag 62 extends rearward from the end of the rear air passage member upper portion 60B so as to be orthogonal to the rear air passage member upper portion 60B. Thus, the ventilating bag 44 has a rear corner 68 formed between a rear inner edge extending in the front-rear direction and a rear front edge extending in the vertical direction adjacent to and orthogonal to the rear inner edge.

A rear seat cushion side housing recess 63 recessed downward is formed in the inclined surface 17B of the raised portion 17 . The rear seat cushion side housing recess 63 extends rearward after extending upward from the seat cushion side first insertion hole 22 .

The rear ventilation bag 62 and the rear air passage member upper portion 60B that has passed through the seat cushion side first insertion hole 22 are received in the rear seat cushion side housing recess 63 . At this time, the raised portion 17 is formed with a rear edge portion 67 that contacts a rear corner portion 68 of the rear ventilation bag 62 .

With the rear ventilation bag 62, air can be sent out toward the seated person from the left and right inwards over a wider range. Further, the downward movement of the rear ventilation bag 62 is suppressed by the rear corner portion 68 provided on the rear ventilation bag 62 and the rear edge portion 67 provided on the raised portion 17 and in contact with the rear corner portion 68 .

In another embodiment, the air passage member lower portion 42A and the rear air passage member lower portion 60A may be integrally formed. In addition, the air passage member upper portion 42B and the rear air passage member upper portion 60B may be integrally formed. In this case, the rear ventilation bag 62 extends rearward from the end of the air passage member upper portion 42B.

(Fourth embodiment)
As shown in FIG. 12 , the vehicle seat 1 according to the fourth embodiment is not provided with the second blower 70 . The top surface 16A of the portion of the base 16 in front of the second hanging groove 21 on the front side is arranged on the same plane as the top surface 16A of the portion behind the second hanging groove 21 on the front side.

The seat cushion side first insertion holes 22 are provided on the left and right inner sides of the first hanging groove 20 . A lower seat cushion side housing recess 66 recessed downward is formed in the upper surface 16A of the base portion 16 in front of the second hanging groove 21 on the front side. The lower seat cushion side housing recess 66 has the same front and rear width as the front and rear width W1 of the seat cushion side first insertion hole 22, and extends inward and leftward and then forward. The forwardly extending portion of the lower seat cushion side housing recess 66 has a rectangular shape when viewed from above, and its longitudinal direction corresponds to the front-rear direction.

The first blower device 40 further has a lower ventilation bag 65 and a lower air passage member upper portion 64 . The lower air passage member upper portion 64 extends left and right inward from a portion of the air passage member upper portion 42B that has passed through the seat cushion side first insertion hole 22 . The lower ventilation bag 65 extends forward from the upper portion 64 of the lower air passage member.

The lower ventilation bag 65 and the lower air passage member upper portion 64 are received in the lower seat cushion side accommodation recess 66 . As a result, the lower ventilation bag 65 and the lower air passage member upper portion 64 form part of the upper surface 16A of the base portion 16 . Therefore, the air sent from the first blower 41 to the lower ventilation bag 65 is sent from below toward the seated person. That is, the air is blown toward the seated person over a wider range without providing the second air blower 70 .

(Fifth embodiment)
A first blower device 40 according to the fifth embodiment is attached to the seat back 5 . In the following description, the same reference numerals are given to the same configurations as those of the first blower device 40 according to the first embodiment, and the description thereof is omitted.

As shown in FIG. 13 , the seatback frame 26 constituting the seatback 5 includes a pair of left and right seatback side members 90 extending in the vertical direction, and a lower member extending in the left and right direction and coupled to the lower ends of the left and right seatbacks 5 . member 91. The left and right seatback side members 90 are formed to have a metal cross-sectional groove shape. The left and right seatback side members 90 are arranged with groove portions facing each other. The lower member 91 is made of a plate-like member made of metal. The lower member 91 connects the lower ends of the left and right seatback side members 90 to each other.

The seatback frame 26 further has an upper member 92 that connects the upper ends of the left and right seatbacks 5 to each other. The upper member 92 is formed of a metallic tubular member. The upper member 92 is received in the upper groove portions of the left and right seatback side members 90, extends upward, and then extends upward and inward in the left and right direction. and an upper member upper portion 92B coupled to the upper ends of the left and right upper member side portions 92A. A headrest 6 is provided on the upper member upper portion 92B.

The seatback frame 26 further has a bridge frame 93 extending in the left-right direction and connecting the upper portions of the left and right upper member side portions 92A. The bridging frame 93 is formed of a metal plate-like member and has a surface facing the front-rear direction. The bridging frame 93 is arranged so as to be recessed rearward from the left and right upper member side portions 92A.

A seatback-side pressure receiving member 94 is arranged between the left and right seatback-side side members 90 . The seatback-side pressure receiving member 94 is formed of a plate-like member made of hard resin. The seatback-side pressure receiving member 94 includes a seatback-side pressure-receiving member central portion 94A having a surface facing in the front-rear direction, and a pair of left and right sheets extending left and right outward from left and right edges of the seatback-side pressure-receiving member central portion 94A. and a back side pressure receiving member side portion 94B. The lateral width of the seatback side pressure receiving member central portion 94A is narrower than the lateral width of the bridging frame 93 .

The bridging frame 93 and the lower member 91 are connected via a pair of left and right connecting wires 95 . The left and right connecting wires 95 extend downward from the corresponding left and right ends of the bridging frame 93 to a position above the seatback-side pressure receiving member 94, and then extend downward and inward in the left-right direction. After that, the connecting wire 95 further extends downward to reach the lower member 91 . The distance between the left and right connecting wires 95 aligned with the upper end of the seatback side pressure receiving member central portion 94A in front view is narrower than the left and right width of the seatback side pressure receiving member central portion 94A. The pressure receiving member is fastened to the left and right connecting wires 95 by a binding band (not shown) at a position aligned with the upper end of the central portion 94A of the seatback side pressure receiving member when viewed from the front.

As shown in FIG. 14, the seatback pad 15 arranged in front of the seatback frame 26 is formed with a seatback-side first insertion hole 98 penetrating in the front-rear direction. The seatback-side first insertion hole 98 is defined in a rectangular shape that is long in the left and right direction when viewed from the front. The seatback-side first insertion hole 98 is provided so as to be aligned with a position below the bridging frame 93 in a front view and a center position in the left-right direction between the left and right seatback-side side members 90 .

The surface of the seat back pad 15, that is, the surface facing the seated person, is formed with a seat back side accommodation recess 99 extending in the vertical direction and recessed rearward. The seatback-side accommodation recessed portion 99 is formed integrally with a seatback-side accommodation recessed portion upper portion 99A defined in a rectangular shape elongated in the left-right direction when viewed from the front, and below the seatback-side accommodation recessed portion upper portion 99A. and a seat back side accommodation recess lower portion 99B defined in a tapered shape with a narrower width. The lower end of the seatback side housing recess lower portion 99B communicates with the seatback side first insertion hole 98 with a width equal to the left and right width of the seatback side first insertion hole 98 . Therefore, the lateral width of the seatback-side accommodation recess upper portion 99A is larger than the lateral width of the seatback-side first insertion hole 98 .

As shown in FIG. 15, the air passage member lower portion 42A of the air passage member 42 has a plate-like shape, and the lateral width thereof is set smaller than the lateral width of the seatback-side first insertion hole 98. As shown in FIG. An air passage member upper portion 42B of the air passage member 42 has a reverse tapered shape in which the left and right widths widen as it extends outward from the air passage member lower portion 42A. That is, the air passage member upper portion 42B of the air passage member 42 has a pair of left and right side edges 100 extending upward and left and right outward from the left and right edges of the air passage member lower portion 42A. The ventilation bag 44 has a plate shape.

As shown in FIG. 16, the first blower 41 is attached to the bridging frame 93 with the intake port facing rearward and the air supply port facing downward. The bridging frame 93 is provided with a through hole (not shown) having the same diameter as the fitting hole 48 (see FIG. 6) arranged in the first blower 41 . After coaxially arranging the through hole and the fitting hole 48, the first blower 41 is attached to the bridge frame 93 by screwing a bolt and a nut (not shown) passing through the through hole and the fitting hole 48. It should be

When attaching the ventilation bag 44 and the air passage member 42, the operator passes the air passage member lower portion 42A of the air passage member 42 through the seatback side first insertion hole 98 from front to rear. Next, the operator connects the air passage member lower portion 42A of the air passage member 42 to the air supply port of the first blower 41 . Furthermore, after that, the operator receives the ventilation bag 44 in the seatback side accommodation recess upper portion 99A, and the air passage member upper portion 42B of the air passage member 42 in the seatback side accommodation recess lower portion 99B.

The seat back pad 15 has a pair of left and right edge portions 102 that define the seat back side accommodation recess lower portion 99B and abut on the left and right side edge portions 100 of the air passage member upper portion 42B of the air passage member 42 .

Thus, the lateral width of the ventilation bag 44 and the lateral width of the air passage member upper portion 42B of the air passage member 42 are larger than the lateral width of the seatback side first insertion hole 98 . Therefore, passage of the ventilation bag 44 and the air passage member upper portion 42B of the air passage member 42 rearward through the seat back side first insertion hole 98 is suppressed. Further, the vertical displacement of the ventilation bag 44 is restricted by the edge portion 102 provided on the seat back pad 15 . Therefore, the position of the ventilation bag 44 is regulated.

Although the specific embodiments have been described above, the present invention is not limited to the above embodiments and can be widely modified. For example, the ventilation bag 44 is arranged at a position that does not overlap with the virtual line 21A extending from each of the two second hanging grooves 21, but the ventilation bag 44 is placed at a virtual line 21A extending from each of the second hanging grooves 21. It may be arranged so as to overlap with at least one of the lines 21A.

1: Vehicle seat (vehicle seat)
4: Seat cushion 5: Seat back 8: Frame 10: Pad 12: Skin material 14: Seat cushion pad 15: Seat back pad 16: Base portion 17: Raised portion 17A: Outer end surface 17B: Inclined surface 20: First hanging groove 21: Second hanging groove 21A: Virtual line 22: Seat cushion side first insertion hole (first insertion hole)
24: Seat cushion side accommodation recess (accommodation recess)
25: Seat cushion frame 26: Seat back frame 27: Seat cushion side side member (side member)
28: Front member 29: Rear member 30: Intermediate member 40: First blower 41: First blower 42: Air passage member 42A: Air passage member lower portion 42B: Air passage member upper portion 43: Discharge port 44: Vent bag 49: Sheet material 50 : Fiber mat material 56 : Inner edge 57 : Front edge 58 : Corner 70 : Second blower 71 : Second blower 72 : Duct 73 : Second opening 74 : Second insertion hole 85 : Edge W1 : Width before and after the first insertion hole on the seat cushion side (width of the first insertion hole)
W2: Width of ventilation bag in right and left direction W3: Width in front and back of upper part of air passage member (width of air passage member)
W4 : Left and right width of the lower part of the air passage member

Claims (17)

A vehicle seat,
a frame;
a pad supported by the frame;
a skin material covering the pad;
and a first air blower provided on the pad,
The pad is formed with a first insertion hole penetrating from the front surface to the back surface of the pad,
The first air blower includes a first blower arranged on the rear surface side of the pad, an air passage member extending from the first blower to the front surface side of the pad through the first insertion hole, and a ventilation bag connected to the air passage member and formed with a plurality of discharge ports for discharging air;
The vehicle seat, wherein the width of the ventilation bag is larger than the width of the first insertion hole, and the width of the air passage member is smaller than the width of the first insertion hole. 2. The vehicle seat according to claim 1, wherein said ventilation bag and said air passage member have a structure in which outer contours of two sheets of identically shaped sheet material which are overlapped are connected to each other. 3. The vehicle seat according to claim 2, wherein a fiber mat material having air permeability is arranged between the two sheet materials. The air passage member has an air passage member lower portion connected to the first blower and an air passage member upper portion coupled to the air passage member lower portion,
the lower part of the air passage member is arranged on the rear surface side of the pad,
The upper part of the air passage member passes through the first insertion hole,
The vehicle seat according to claim 1, wherein the width of the lower portion of the air passage member is larger than the width of the first insertion hole. Having a seat cushion that supports the buttocks and thighs of a seated person, and a seat back that supports the back of the seated person,
The pad has a seat cushion pad that constitutes the seat cushion and a seat back pad that constitutes the seat back,
The seat cushion pad has a base forming a central portion in the left-right direction, and left and right protuberances protruding upward from left and right ends of the base,
The first insertion hole is provided between at least one of the left and right protrusions and the base,
5. The vehicle seat according to claim 3, wherein the ventilation bag is arranged on the upper surface of the raised portion. A pair of left and right first hanging grooves that engage with the skin material and extend in the front-rear direction are provided between the left and right raised portions and the base portion,
6. The vehicle seat according to claim 5, wherein the first insertion holes are arranged laterally outside of the first hanging grooves. The left and right protuberances are provided at the left and right outer ends, and have outer end surfaces facing left and right outward and inclined surfaces that descend from the upper ends of the respective outer end surfaces toward the left and right inward,
7. The vehicle seat according to claim 6, wherein said ventilation bag is arranged on said inclined surface. The inclined surface is formed with an accommodation recess recessed downward,
8. The vehicle seat according to claim 7, wherein the air passage member passing through the first insertion hole and the ventilation bag are housed in the housing recess. The ventilation bag has an inner edge extending back and forth,
The air passage member has a front edge portion adjacent to the inner edge portion and extending in a direction orthogonal to the front-rear direction,
9. The vehicle seat of claim 8, wherein a portion of said pad is located at a corner formed between said inner edge and said leading edge. 10. The vehicle seat according to claim 9, wherein said accommodation recess has an edge that abuts said corner. The base has a plurality of second hanging grooves that engage with the skin material, extend left and right, and are connected to the left and right first hanging grooves,
7. The vehicle seat according to claim 6, wherein the ventilation bag is arranged at a position not overlapping a virtual line extending from each of the plurality of second hanging grooves. 12. The vehicle seat according to claim 11, wherein said first insertion hole is arranged at a position not overlapping with said imaginary line extending from each of said plurality of second hanging grooves. The frame has a seat cushion frame that forms the seat cushion and a seat back frame that forms the seat back,
The seat cushion frame includes a pair of left and right side members extending in the front-rear direction, a front member extending in the left-right direction and coupled to front ends of the left and right side members, and a front member extending in the left-right direction and connected to the rear ends of the left and right side members. After joining has a member and
The front member is formed of a plate-like member having a width in the front-rear direction,
6. The vehicle seat according to claim 5, wherein said ventilation bag extends forward beyond the rear end of said front member. each of the left and right ends of the front member extends forward of the front end of the corresponding side member;
14. The vehicle seat according to claim 13, wherein said vent bag and said front member overlap when viewed from above. The seat cushion frame has an intermediate member disposed between the front member and the rear member, extending in the left-right direction, and coupled to the left and right side members,
15. The vehicle seat according to claim 14, wherein said air passage member extends vertically behind said intermediate member. The seat cushion has a pressure receiving member arranged between the intermediate member and the rear member,
The pressure-receiving member is formed of a plate-like member having a surface facing up and down,
A first opening penetrating vertically is formed in the pressure receiving member,
16. The vehicle seat of claim 15, wherein said first blower is positioned in alignment with said first opening when viewed from above. further comprising a second blower;
The second blower has a second blower and a duct one end of which is connected to the second blower,
A second opening penetrating vertically is formed in the pressure receiving member,
The base is provided with a second insertion hole penetrating from the back side to the front side of the base and receiving the other end of the duct at a position aligned with the second opening when viewed from above,
The first insertion hole is defined in a rectangular shape when viewed from above,
The second insertion hole is defined in a rectangular shape when viewed from above, and the longitudinal direction of the first insertion hole corresponds to the front-rear direction,
The vehicle seat according to claim 16, wherein the longitudinal direction of the second insertion hole corresponds to the lateral direction.

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